On-ear earphones? I’ll let the classifier gurus decider on where and how to classify these, but in the meantime, Massdrop is offering the new condition Koss KDE250 Earphones for $60 with free US shipping. Shipping appears to under $3 for many international locations [but I obviously can’t test them all]…

These will ship from Massdrop in mid-April 2019. There is no mention of warranty in the listing. This is not a “Koss x Massdrop” which mayhaps suggests this is sold via third parties (or something like that), thus no mention of a warranty???

The black/silver [the one with the cyan-blue accents] is the iconic Koss Porta PRO Walkman-era headphone, but if you prefer a more black color scheme, the more recently released black color scheme [it still has some silver] is currently down to $31 and change by Amazon actual. It is not a lighting deal, so the price can change dynamically as time goes by. Even if you don’t like this price, this is something to keep at the back of your mind as it currently goes for a couple of dollars under the original color scheme.

For those not familiar, note that these are open-back!

However, if you must have a mic/remote combo, then $38 gets you the Massdrop x Koss edition. Shipping varies depending on location, but these are lightweight and foldable, so international shipping should be fairly low.

But that’s not all. Koss finally woke up to the staying power of this model and they have released a few other variants as you can in the Amazon listings. There are enough colors/options to color-code them by the day of the week 😉

I love my good old Koss KSC-75 open-ish clip-ons, which by the way I found in the clearance bin at an Office Depot (if memory serves me well) a few years ago. They are small enough you can use them in bed, especially if you sleep on the side (eg listening to podcasts or audiobooks). Or if you don’t like things hanging on your ears while you sleep, you can set them on or near or under the pillow and use them as mini speakers. But they don’t have a remote, which makes it a pain if you use DAPs or PADs (phones as DAPs) and like to frequently pause sound.

Fear not however, help is on the way. As part of the new ship, Koss X Massdrop [yes, there are fanfics about these two!], they have released a version of the KSC-75 with a mic/remote (a one-button remote), the KSC-75X, and it is an in-stock drop at Massdrop for just $17. Despite the small price, they do come with the Koss limited lifetime warranty!

US shipping is FREE BUT they are also offering expedited shipping options for more… International shipping is not bad ~ all the countries I tried in the shopping cart showed a flat $5 shipping fee. And it makes sense, these are tiny little things.

I don’t YET have the new KSC-75X but I had posted a text and pictures unboxing of the good old KSC-75. I don’t know if the packaging is the same as the new KSC-75X. One could argue this might be the best bang for the buck headphone? I’m sure there are hundreds of threads on this topic in the forums, enough to spend a few years reading non-stop 🙂

A close-up of my good old KSC-75 [not the KSC-75X sold by Massdrop]:

PS: “in-stock drops” are products that Massdrop has available in their warehouse, so they ship within a couple of business days of purchase. The “XX hours left” does not mean the listing will end. Rather, every 24 hours the listing closes, and every order that was placed during those 24 hours gets processed and shipped. So, unlike the traditional Massdrop offers that have a 5-day or 7-day window, the “in-stock drops” continue daily until Massdrop runs out of them.

If you love the good old Porta PROs but you also like the convenience of bluetooth, Massdrop is back with another offer, the new condition KOSS PortaPRO wireless going for $70. Limit up to three headphones per Massdrop member. Note also that this drop is limite to US and Canada addresses.

These support bluetooth 4.1 with apt-X, and of course like the original, they are open-back/open-air, so you can smell their dairy air? 🙂

Speaking of dairy air, even though they are a KOSS product, per the MD listing, they come with just a 1-year warranty, not the usual KOSS lifetime. But a hard case is included.

Also with 4 days and change left [from blog-posting time] is the new condition Koss KPH30i lightweight on-ears offered for $20 plus shipping in your choice of color scheme [three options are available]. They do come with a mic/remote combo, as do other Massdrop x Koss products. They will ship end of November and come with the usual Koss lifetime warranty.

In other MD action, the Fanmusic C6 cables which fit the HD 6XX and HD 58X but also the HD580, 600 and 650, are offered for $60 with free US shipping. At checkout you can select between 1/4″ or 4-pin XLR. The shipping estimate is just before Christmas 2018.

Speaking of Massdrop, if you are interested in closed-back headphones, they have a running Interest Check thread on closed-back headphones. If there any closed headphones you’d like to see offered there, this is a good opportunity to convince MD to bring them but also fellow shoppers to want them, so they can add their voice/support for model-of-interest 🙂

I promise this is the last time I’ll use this joke! Come on Barbie, let’s have an Electrostatic Party! In progress at Massdrop, as part of their growing co-operation with Wisconsin’s KOSS, they are offering the new condition Massdrop x Koss ESP/95X Electrostatic System for $500 with free US shipping and subsidized international shipping. Choice of 120V or 220V is available at checkot.

This is a “massdropized” variation of the well-known ESP-950, but it is an in-development product. Shipment is early April 2019, that’s over five months from blog-posting date.

A total of 713 are offered for purchase. As of the time of 379 of them have been sold.

Good news, bad news! If you wished there was a bluetooth version of the legendary Koss Porta PROs, we have both! A brand new wireless (bluetooth 4.1 with apt-X) version is now available for purchase at Massdrop. The bad news is that it goes for $75. Up to three headphones per customer. The drop is limited to US (free shipping) and Canada.

Seven more units need to get purchased before this offer unlocks. The drop ends Sunday night. It will ship in late May 2018 and it comes with just a 1-year warranty, not the legendary Koss limited lifetime warranty.

This is a feast of trade-offs and silver linings… A hard case is included. No NFC.

However, if you don’t want to wait for Massdrop, for $5 more you can get them from KOSS fulfilled by Amazon. $80 wiht free shipping ~ free 2-day shipping for Prime members. Two days is faster than late May 2018 🙂 Amazon does not have a limit, you can buy as many as you want.

It’s the return of Cheese-Fi! The new condition Koss KPH30i Rhythm Beige lightweight on-ear headphones are back on at Massdrop for $20 plus shipping. The offer runs until Monday night, and will ship in mid-May from Massdrop. Being a co-operation between the two, it comes with the usual and very generous Koss limited lifetime warranty.

You can almost smell the dairy air(e) in the KOSS headphones of Wisconsin and on sale we go again, the new condition Koss QZ-99 Noise Reduction Stereophone with its distinctive on-earcup volume control dial is going for the very specific price of $34.15 by Amazon actual, with free shipping, and a maximum of three pairs per customer. This averages 4 out of 5 based on 270+ customer reviews and has 37 answered questions. It has an on-cable Stereo/Mono switch as well. It has a single-entry coiled 8-footer cable. This is passive noise reduction, there’s no ANC or battery/power on these.

The new condition Koss UR23iB headphones with D-shaped earcups (thus I’m not sure if it’s over-ear or on-ear) is currently on sale by a marketplace seller for $8 with the orders fulfilled by Amazon. You can buy as many as you like. It is not a lightning deal. It is a blue/white color scheme. The headband is almost non-existent! They average 3.9 out of 5 based on 46 customer reviews.

Here’s an annotated screenshot of their main product picture with the points of interest marked:

It is back! Come listen to our dairy air(e)! Running for the next five days and change (from blog-posting date; Massdrop does not show an exact expiration date, that’s why I’m posting the expiration like this) is the new condition Koss KPH30i Rhythm Beige Lightweight On-Ears for $20 plus shipping. They come with the famous KOSS limited lifetime warranty as Koss and Massdrop are co-operating. All sales are final however.

They will be shipped in mid March 2018 by Massdrop. They come with a non-detachable dual-entry cable with mic/remote.

Speaking of Koss, I just posted a text and pictures unboxing of the KOSS KSC-75 earclips, a “rescue” from the clearance bin of a brick and mortar store. I listened to them for the first time last night, they sound a lot better than they look 🙂

We have a new unboxing post of a rescue, a headphone rescue, I found the good old KOSS KSC-75 clip-on earphones in a clearance bin at a brick and mortar store and had to “rescue” them. This is their text and pictures unboxing with a total of nine pictures (the headphones are so gray, it looks like they are black and white pictures, but they are not!)…

The PortaPRO is not the only retro popular KOSS headphone. At least at Massdrop, the new condition Koss KPH30i Rhythm Beige Lightweight On-Ears is popular enough that they brought back the drop, going just like before for $20 plus shipping. They come with the famous KOSS limited lifetime warranty as Koss and Massdrop are co-operating. All sales are final however.

They will be shipped in late March 2018 by Massdrop. They come with a non-detachable dual-entry cable with mic/remote. This runs for the next four days and change (from blog posting date).

Both of these are Add-On items, so your order total must be $25+ in products shipped or fulfilled by Amazon, otherwise their shopping cart won’t let you buy them. So you can instead “append them” to a larger Amazon order if you are not close to $25 right away.

Back to “The Used” with the closed-back Koss PRO DJ 200 Studio headphones, they are currently available in “Used – Like New” (damaged original packaging) for $49~ with free shipping by Amazon Warehouse Deals actual. There is only one used listing for this headphone which averages 4.2 out of 5 based on 94 customer reviews over there.

Speaking of KOSS, running for the next two days and change (from blog-posting time), you can get the new condition Koss KPH30i Rhythm Beige Lightweight On-Ears for $20 plus shipping. They come with the famous KOSS limited lifetime warranty as Koss and Massdrop are co-operating. All sales are final however. They will be shipped in late February 2018 by Massdrop. They come with a non-detachable dual-entry cable with mic/remote on it.

This has generated traction with Massdrop buyers, 180 units have been sold as of the time of writing. This model was showcased at last year’s RMAF (Rocky Mountain Audio Festival).

On the lightweight on-ear headphones front, the new condition Koss KPH7 (black color scheme) is on sale for the very specific price of $2.94 by Amazon actual. Limit three per customer at this price.

The other three colors go for $5+. These are however ADD-ON items, so you must needs place an order of $25+, elsewise the Amazon shopping cart will not let you buy them. If you get three of each you will get close to $25, but you’d need to add something else to climb over $25.

The headphones average 3.7 out of 5 based on over 1080 customer reviews and have over 75 answered questions. Despite the crazy low price, they still carry the KOSS limited lifetime warranty.

If you don’t want to wait for another sale, the Koss Porta PRO retro-looking open-back on-ears in the black color scheme are available in “Used – Like New” condition (original packaging) for $32~ with free shipping by Amazon Warehouse Deals actual. The older iconic black/silver model is also available used at a similar price, but it goes on sale for less since it’s an older model.

The earpads are the headphones (almost) in this new budget model from KOSS, and the blue color scheme, in new condition, is currently on sale for $8.49 by a marketplace seller with the orders fulfilled by Amazon. “It” refers to the Koss UR-23-iB model in blue, while the black color scheme, aka the the Koss UR-23-iK goes for $12.59, likewise fulfilled by Amazon. The other two color schemes go for $20.

If you prefer the black color scheme but want to pay single figures, you can get it in open-box condition for $7 by marketplace seller with the orders fulfilled by Amazon.

Free 2-day shipping for Prime members (shhhh, don’t tell Amazon’s bots; it’s not an add-on item), or with a $25+ order. This is not a lightning deal, so expiration time unknown. They are D-shaped earcups/earpads, lightweight but over-ear, with the usual Koss limited lifetime warranty despite the low price.

Diary Air(e) time now! Fully unlocked at Massdrop is the new condition Koss Pro4S Closed Over-Ears for $100 with free US shipping for the next three and change days, shipped by Massdrop in late January 2018. All sales are final still…

This is probably a must have headphone if you want to be a “headphonalia guru”, it’s the good old Koss KSC75 clip-ons, continuing to be on sale for $10 in new condition by Amazon actual with up to three pairs per customer at the sale price. Free shipping for Prime members or with a $25+ order.

Old school time! The new condition open-back famous Koss KSC75 clip-on headphones are currently on sale for $10 per pair, at Amazon by Amazon actual with up to three pairs per customer! Free shipping for Prime members or with a $25+ order. This is not a lightning deal, so expiration time unknown. They average 3.9 out of 5 based on 2500+ customer reviews.

The Koss SportaPro, not to be confused with the more famous PortaPro, are on sale at the moment, going for $19 in new condition, with up to three pairs per customer at the sale price, sold and shipped by Amazon actual where they average 4.2 out of 5 based on 430+ customer reviews. They have a collapsible design. This is not a lightning deal, so expiration time unknown. Free shipping with Prime or with a $25+ order.

Speaking of the more famous PortaPros, the all-black color-scheme goes for $42 with free shipping. This has less blue than the classic PortaPros… Or if you prefer a model with a mic/remote, you can get the Massdrop X edition for $38 with free shipping as one of the Massdrop In-Stock offerings (they ship within a week after ordering).

The new condition KOSS BT540i closed-back bluetooth over-ear headphones are on sale for the very specific price of $96.49 at Amazon by Amazon actual with up to three pairs per customer. This is not a lightning deal, so expiration time is unknown. They average 4.1 out of 5 based on 55 customer reviews.

Did the Guardians of the Galaxy put you in a retro music gear mood? Massdrop can help with that too, they have, fully unlocked, running for the next five days or so, the new condition Koss KPH30i Rhythm Beige lightweight on-ear headphones for $20 plus shipping. This model is based on the KTXPro1 and Pro35 but has a mic/remote to keep the smartphone users happy. Smartphone features and all, it is still open, driving the rando-consumer who buys it without reading the page in front of them mad 🙂

It comes with the usual Koss limited lifetime warranty and will ship at the end of December, which is also the end of the year. OMG, where did all the time go? It also means that another wave of new headphones is coming, because CES 2018 is coming!

Come on Barbie, Let’s Have an Electrostatic Party! Fully unlocked at Massdrop, and with only 45 units available (14 claimed as of the time of writing), you can get the new condition KOSS ESP950 Electrostatic Headphone System for $600 with free shipping. It is estimated to ship mid-December 2017 from the vendor with the usual Koss limited lifetime warranty.

This is not the only Koss-Massdrop partnership, they also offer the Massdrop x Koss Porta Pro X for $38 with free shipping as one of their “In-Stock Drops”. These are sold like a regular online purchase (the “drops” open/close every 24 hours and items purchased during a 24 hour window get shipped in a couple of business days after that). We are tracking the “in-stock drops” in our new Massdrop Tracker.

These go in and out of stock in used condition at this price so if you check again in the future you may find it again..

The used condition closed-back over-ears with on-earcup analog volume-control dial is currently available in “Used – Like New” condition (damaged original packaging) in the very specific packaging of $24.51 by Amazon Warehouse Deals actual. The new condition price is about twice as much.

If you don’t want to wait for future sales, the black color scheme of the good old Koss Porta Pro on-ear headphones with the retro look are back in-stock at Amazon for $42 with free shipping. They are on the same listing as the classic model with the blue hues. If you switch back and forth between the two options on the Amazon listing you’ll see their visual differences. They reside on the same listing.

Goodbye Kringle joke, as of 10/26/17 AM recheck, these sold out in used condition…

For the price of an online Kringle, you can instead get the closed-back over-ear Koss R-80 headphones, which are currently available in “Used – Very Good” condition (various scratches, damaged original packaging) for $21 through Amazon Warehouse Deals (AWD) by AWD actual, so free 2-day shipping for Prime members or with a $25+ order.

Their new condition price is currently $34.50 and they average over there 3.9 out of 5 based on 181 customer reviews.

The Koss QZ-99 closed-back over-ear headphones with a mono/stereo switch go for around $40 in new condition at the moment, but you can cut the price almost in half by going used, you can get them in “Used – Very Good” condition for $23~ by Amazon Warehouse Deals. They average 4 out of 5 based on 260+ customer reviews at Amazon.

Clip-on time! The new condition Koss KSC21 SportClip Clip-Ons are on sale for the very specific price of $6.24 with a limit of up to three pairs per customer during this sale at Amazon by Amazon actual where they average 3.7 out of 5 based on 150 customer reviews. Shhhh! This is not an Add-ON item, so Prime members get free 2-day shipping even with one pair. Non-Prime members need the usual $25+ minimum order for free shipping.

These should not be confused with their more famous cousins, KSC-75 Clip-Ons which are also on sale for $11.70 each, with a limit of three per customer and they average 3.9 out of 5 based on 2500 customer reviews. Note the that KSC-75 are open-back even though they are clip-ons 🙂